eldredge



following'is a specificaLion.

I -15 Our. improved alloy consists ofa compound 7 20 parts.

ATENN ews,

- DANIEL OlHARA, DANIEL W.;ELDREDGE, AND JOHN LOGAN, OF WALTHAM,

- MASSACHUSETTS.

ALLOY} SPECIFICATION forming part of Letters Patent No. 385,954, dated July 10, 1888. l {Application filed March 2,1888. Serial No. 265.934. (N0 specimens.)

'-. T0 azz whom it may-concern: portions of platinum, c0pper,and nickel above Be ibknown tl121l3\ V0,DANIEL OH ARA,DAN- specified, but may vary the some within reami. W. ElDREDGE, and JonN LOGAN, of Walsonablelimitswibhoufidepartingt'rom-Lhespirit tlmm, inthe county ofiMiddlesex and State of of our invention. 5 lllassachusetts, huveinvented certain new and -We claiu1 useful lm provements jin Alloys, of which the An alloy or compoundmetal composed of labinum, copper, nickehau'd gold, in subsbantialll-y the following parts, viz: sevcnby five alloy or compound metal which shallbe practiparts of platinum, ten parts of copper, ten 10 cally non-magnetic, ii1oxidizable,and willhave parts of nickel, and from ten to forty parts ofasuitziblecoe'fficientofeizpzinsion toadaplzit for' gold, asset forth. use as the material for one of the parts of the 1 In testimony whereof we have signed our rim ot a compensation-balance for watches or names to this specificatiomin the presence of chronon eters. .twosubscribingwibnesses,this 28th day of Feb- 2 5 ruary, A. D. 1888. I 1 of platinum, copper, nickel, and gold in about DANIEL OHARAQ the following proportionsz'platinum,seventy- DANIEL VI. ELDREDGE. five (70) parts; copper, ten (10) parts; nickel, JOHN LOGAN.

vt-en (10) parts; gold, from ten (10)toforf1y (40) \Vitnesses: f

' .HENRY N. FISHER, We do not limit ourselves to the exact pro- 1 EDWARD A. MARSH.

Our-invention has for its object to provide on 

